Railway-signal.



PATENTED NOV. 17, 1903.

M. D. HANLON.

RAILWAYSIGNAL. APPLICATION FI LED AUG. 10, 1903.

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PATENTED NOV. 17, 1903.

M. 1). HANLON. RAILWAY SIGNAL.

APPLICATION FILED AUG. 10, 1903.

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PAT'ENTED NOV. 17,1903.

Y M. D; HANLON; RAILWAY SIGNAL. APPLIUATIGN FILED AUG 10.1993;

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MARQUIS D. HANLON, OF 'WILKINSBUR Patented November 17, 1903/ PATENT rrion.

G, PENNSYLVANIA, ASSIGNOR TO THE UNION SWITCH AND SIGNAL COMPANY, OF'SWISSVALE, PENNSYLVANIA,

A CORPORATION OF PENNSYLVANIA.

RAI LwAY- SIGNAL.

SPECIFICATION forming part of Letters Patent No. 744,069, dated November 17, 1903.

Application filed August 10, 1903.

To all whom it may concern:

Be it known that I, MARQUIS D. HANLON, av citizen of the United States, residing at Wilkinsbnrg, in the county of Allegheny and State of Pennsylvania, haveinvented certain new and useful Improvements in Railway-Signals, of which the following is a specification.

My invention relates to railway-signals, and particularly to the signal embodied in the railway-signal.

I will describe a railway-signal embodying my invention and then point out the novel features thereof in the claims.

In the accompanying drawings, Figure l is a view, partly in vertical section and partly in elevation, of a portion of a railway-signal embodying my invention. Fig. 2 is a detail view of a device embodied in the railway-signal shown in Fig. 1. Fig. 3 is a transverse as sectional view of the device shown in Fig. 2, the section being taken on the line 3 3 of Fig. 2. Fig. i is a top plan view of the device shown in Figs. 2 and 3. Figs. 5 and 6 are each detail views of parts of the device shown in Figs. 2 and 3. Fig. 7 is a view,

partly in elevation and partly in vertical section, of aportion of a railway-signal, showing a modified form of my invention. Fig. 8 is a view, partly inhorizontal section and partly in top plan, of a device embodied in the railway-signal shown in Fig. 7'. Fig. 9 is a view similar to Fig. 8, but showing other parts in horizontal section. Fig. 10 is a detail view of' a part of the device shown in 5 Figs. 8 and 9. Fig. lOis a view, partly in elevation and partly in vertical section, of a portion of a railway-signal, showing another modified form of my invention. Fig. 11 is a view similar to Fig. 10, but showing other parts in vertical section. Fig. 12 is a detail top plan view of a device embodied in the railway-signal of Figs. 10 and 11. Fig. 13 is a detail view, partly in vertical section, of a portion of a railway-signal, showing another 5 modification of my invention. Fig. 14 is a detail view, in vertical section, of a device embodied in the railway-signal shown in Fig. 13.

Similar letters of reference designate corresponding parts in all of the figures.

erial No. 168,888. (No model.)

I will premise that whereverI use the term signal I mean to include avisual signal device which by its color why its position relatively to its support gives indication of the service condition of the railroad-track or section of railroad-track which it governs.

Referring to the drawings, and particularly-to Figs. 1 to 6, A designates a post or other support, and B a signal or signal device which is fixed on a shaft 1), suitably journaled at the upper end of the post or support. The signal 13 is here shown as being of the semaphore type and comprises ablade or arm I) and a casting, or, as it is generally termed, a spectacle 17 to which the blade I) is attached and through which the shaft 1) passes. The casting is provided with a plurality of openings 6 in which suitable transparent disks or lenses may be held. These disks or lenses are used in connection with a lamp supported from or on the post A. In Fig. 1 I have shown two such signals mounted on the same post.

Odesignates a rod arranged vertically and generally termed an up-and-down rod, through which a signal may be moved from one position of indication to another. A rod 0 is provided for each signal B. One end of a rod O is connected to a lover or arm (I, loosely mounted on the shaft 6, and its other or lower end is connected. by suitable means with an apparatus, mechanism, or devices intended for moving the signal to give different indications. This apparatus, mechanism, or devices (not shown) may be operated manually, by fluid-pressure, by electricity, or any other desired form of energy. Two rods C may be operated from the same apparatus, mechanism, or devices, or each rod 0 may be provided with a separate operatin g apparatus, mechanism, or devices.

Thelever d is provided with a slot (1, which receives a pin or stud 01*, carried by sleeve d The sleeve preferably moves with the shaft 27, and this may be accomplished by providing the sleeve with a square opening d, which receives a square or other angled portion d on the shaft 19. The slot 11' is of such length that either the lever d or pin 02 may have some movement independently of the other. Assuming that the signal B is in the position shown in Fig. 1, it will be seen that when the lever d is moved upward by the rod C it will carry with it the pin d and thereby cause the sleeve d to rotate the shaft, and thus move the signal B to an inclined or vertical position of indication. Conversely, if the signal 13 were in a vertical or inclined position of indication the lever 61 could be moved downward by the rod 0 and carry with it the pin (1?, and thereby cause the sleeve to rotate the shaft, and thus move the signal B either to a horizontal position of indication, to an inclined position of indication, or to another inclined position of indication.

Itsometimes happens that a signal B is attempted to be moved surreptitiously or otherwise independently of the rod Cas, for example, through the medium of the blade from a horizontal position ofindication,which is a danger or stop indication, to another position of indication, which may mean safety or clear or caution, either of which would indicate to an engineer that he could proceed with his train. An object of myinvention is to lock the signal B in a danger position against any movement to another position of indication except upon a movement of the rod 0. This is preferably accomplished by causing a lock to become effective upon a movement of the signal otherwise than upon a movement of the rod 0- that is, independent of the rod 0. The look, as here shown, consists of a part in the form of a pawl d which in the usualor normal operation of the signal is ineffective to prevent the signal being moved from the danger position of indication, but is efiective by its engagement with a fixed or immovable part as, for example, the wall of the post or support-when an unusual or abnormal movement of the signal is attempted from itsdanger position of indicationas, for example, a movement-of the signal through the blade. As shown in Figs. 1 to 6, the pawl d is pivoted to one of the two lugs or ears 01 provided for the sleeve 01 by means of a pin d and the free end of the pawl rests on the lever d and against a shoulder d provided on the lever d. The two lugs or ears (1 and their openings are equally disposed as regards the pin d The purpose of providing two lugs or ears d is that the sleeve may be reversed. In the case of two signals on the same post this is an advantage, in that by having the pin d of one sleeve extend in one direction the pin (Pot the other sleeve may extend in the opposite direction, thus affording a clearance for the rods (1, con nected with the levers d. (See Fig. 1.)

The normal position of the parts just described is illustrated in full lines in Figs. 1, (see the upper signal,) 2, and 4:. In this position of the parts the signal is in its horizontal or danger position of indication. Should it be desired to move the signal to an inclined position of indication, the rod 0 is moved, and

with it the lever d. The pin (1 being at the lower end of the slot d in the lever (1, there will be no lost motion, and the sleeve (Z will move with the lever (l, and the shaft 1) thus rotated to move the signal. If the signal B is in the horizontal position of indication and an attempt should be made to change its position by moving it independently of the rod 0 through the medium of the blade, the sleeve 01 by reason of its being fixed on the square portion d will turn with the shaft and carry with it the pawl The end of the pawl will ride upon the shoulder 01 and come into engagement with the wall of the post. (See Fig. 1, lower signal, and dotted lines, Fig. 2.) When the pawl d comes into engagement with the wall of the post, the signal will be in the position shown in the lower part of Fig. 1; but no further movement-can be had of the signal. As soon as the signal is released the casting 61 by reason of its weight,

will move the signal to the horizontal position of indication. The lever d will not be disturbed by the rotation of the shaft, as it is loose on the shaft, and the pin d will move in the slot d of the lever d. Should an attempt be made to raise the blade above its horizontal position, the operating connections of the rod C at its lower end would prevent such a movement. Furthermore, a bolt or screw E, working in the wall of the post A at its upper end, is provided to engage the lever cl. Another function of the bolt E is to always bring the signal to a horizontal position. The adjustment of the bolt E is maintained by a locknut e.

Referring now to Figs. 7 to 10, the lever 61 is, as in Figs. 1 to 6, loosely mounted on the shaft 1). In this form of the invention it is provided with annular bosses or collars d and d ,each of which is provided with ratchetteeth on their faces. 61 designates a sleeve or collar which is fast upon the shaft 1), this being accomplished by providing a square opening in the sleeve ,which receives a square portion of the shaft 1) and which is held against lateral movement on the shaft. The sleeve (Z is provided with ratchet-teeth on the face adjacent the boss (1 and its ratchet-teeth engage with the ratchet-teeth on the boss d If now the shaft 1) be rotated by moving the signal B downward-as, for exam ple,through the medium of the blade-the ratchet-teeth on sleeve 61 will ride on the ratchet-teeth of the boss d As the sleeve 61 cannot move on the shaft by reason in this form of invention of its engagement with the wall of the post A, its ratchet-teeth will force the lever 01 laterally on the shaft to bring the ratchetteeth on the boss at into engagement with the wall of the post A. As the ratchet-teeth on the sleeve d and the boss (Z will not become disengaged, the ratchet-teeth on the boss d will engage the wall of the post with sufficient force to prevent any further rotation of the shaft. The ratchet-teeth on the boss c1 in this form constitute the lock for preventing lever d, the lever d carries with it the gearther rotation of the shaft 1) after the initial.

rotation by the signal B to separate the ratchet-teeth on the sleeve and boss d Referring now to Figs. 10, 11, and 12, F:

designates a gear-segment which is fast on the shaft 1). The gear-segment F meshes with a gear-segment F,loosely mounted on .a shaft F, which shaft is suitably journaled in the post A. The lever d is fast upon the shaft F and it has resting upon it the gear-segment F. When the rod 0 is operated to move the segment F, which as it is moved causes the gear-segment F to rotate the shaft, and thus move the signal B. The pawl 01 in this form is suitably pivoted on the gear-segment F, and its free end is preferably provided with laterally-extending pins d which fit in oppositely-arranged recesses d provided in the lever 01. t In the usual or normal operation of the signal the lever d will retain the pins (1 in the recesses (1 thereby preventing its ongagement with wall ofthe post A. Should an attempt be made to move the signal 13 through the medium of the blade, the gear-. segment F will move independently of the lever d and carry with it the pawl (1 As the lever cl will be held from movement through the rod 0 and the rods operating connections, the pins 01 will ride out of the recesses d and cause the end of the pawl d to engage with the wall of the post A. Fig. 11. The line 00 a; in this figure indicates the center line of the signal-blade when the blade is in its horizontal position.)

Referring now to Figs. 13 and 14, a sleeve 9!, fast on the shaft b, is provided with two logs or projections g, between which a pawl g is pivoted. The rod 0 is connected with the pawl. The pawl g is adapted when rocked on its pivot g to move a certain distance before it engages the sleeve g, afterwhich it is, in effect, a lever, (the same. as d,) through which themovement of the rod is transmitted to rotate the shaft. The preliminary movement of the .pawl g is also sufficient to have its end clear a projection or enlargement g provided on the post A. (See dotted lines, Fig. 13.) Unless the end of the pawl clears the projection the signal cannot be moved on the shaft 1?. Should an attempt be made to move the signal B through the medium of the blade 79, the pawl g would be rocked on the pivot gt, (the point of connection of the rod 0 with the pawl g,) and thereby bring its end into engagement with the projection g What I claim as my invention is- 1. The combination with asignal mounted on a support, of an operating-rod, and means intermediate the rod and signal for producing a movement of the signal upon a movement of the rod and for preventing a movement of (See the signal independently of the rod by engaging the support.

2. The combination with a signal mounted. on a support, of a rod, means intermediate the rod and signal for causing a movement of the signal upon a movement of the rod, and other means which engage the support for preventing a movement of the signal independently of the rod. r

3. In a railway-signal, the combination of a post, a shaft journaled in saidpost, a lever mounted on said shaft, 2. rod for moving said levenmeans intermediate the lever and 'sig-.

nal for causing the signal to he'moved upon a movement of the rod, and a lock for preventing a movement of the signal independently of the rod.

. 4. In a railway-signal, the combination of a post, a shaft journaled in said post, a lever mounted on said shaft, 3. rod for moving said lever, means intermediate the lever and signal for causing the signal to be moved upon.

the rotation of the shaft by the rod, and a lock for preventing rotationof the shaft by a movement ofv the signal suflicieutly to move the signal from a horizontal positionof indication to an inclined position of indication.

5. In a railway-signal, the combination of a post, a shaft journaled in said post, a signal, a lever mounted on said shaft, a rod for moving said lever, means intermediate the lever and signal for moving the signal with the shaft, and a lock for preventing rotation of the shaft by the signal sufficiently to move the signal from one position of indication to another.

6. .ln a'railway-signal, the combination of a signal, a shaft on which it is fixed, a lever loosely mounted on the shaft, a red by which said lever is moved, means intermediatethe lever and shaft for rotating the shaft and signal, and a lock for preventing rotation of the shaft sufficient to move the signal. from a horizontal position of indication to an inclined position of indication.

7. The combination of a signal, a support therefor, a shaft on which, the signal is mounted, a rod and means for rotating said shaft, and a lock operated from the shaft for preventing a movement of the signal independently of the rod.

8. The combination with a signal, of a support therefor, a shaft on which said signal is mounted, a lever loosely mounted on said shaft, a rod for moving said lever, means intermediate the lever and shaft for moving the shaft and signal with the rod, and a lock for preventing a movement of the signal independently of the rod.

9. The combination with a signal, a support therefor, a rod and intermediate means for moving the signal, and a lock which is adapted to engage the support upon a movement of the signal independently of the rod,

from a horizontal position of indication to another position of indication.

10. The combination withasignal, of a support therefor, a shaft on which said signal is mounted, a lever loosely mounted on said shaft, a rod for moving said lever, means intermediate the lever and shaft for moving the shaft and signal with the rod, and a lock for preventing a movement of the signal independently of the rod, said lock being adapted to engage the support when the signal is moved independently of the rod.

11. The combination with asignal, of a support therefor, a shaft journaled in said sup port on which the signal is fixed, a lever loosely mounted on said shaft, a rod connected with said lever, a sleeve fast on said shaft and havinga connection with said shaft, and a lock carried by said sleeve for engaging said support upon a movement of the signal independently of the rod.

12. The combination with a signal, support therefor, a shaft journaled in said support, a lever mounted on said shaft, a rod connected with said lever, means intermediate the shaft and signal for moving the signal upon a movement of the rod, and a lock adapted to be actuated by said means to engage the support upon a movement of the signal independently of the rod.

13. The combination with a signal, of asupport therefor, a shaft journaled in said support and having the signal fixed thereon, a lever h loosely mounted on said shaft and havingaslot, a sleeve fixed on said shaft and having a pin which works in said slot, a rod connected with the lever, and a pawl carried by said sleeve and'adapted to engage the supn port upon a movement of the signal independent-ly of the rod.

14. The combination with a signal, of a support therefor, a shaft journaled in saidsupport and having the signal fixed thereon, a lever loosely mounted on said shaft and having a slot, a sleeve fixed on said shaft, and having a pin which works in said slot and with lugs or cars equally disposed with relation to said pin, a rodconnected to said lever, and a pawl pivoted to one of said lugs and adapted to engage the support upon a movement of the signal independently of the rod.

15. The combination with a signal of a support therefor, a shaft journaled in said support and having the signal fixed thereon, a lever loosely mounted on said shaft and having a slot connected to said lever, a sleeve on said shaft, provided with a pin which works in said slot and with a shoulder and having its end adjacent said shoulder, said pawl being adapted to ride on said shoulder to engage the support upon a movement of the signal independently of the rod.

16. The combination with asignal, of a support therefor, a shaft journaled in said support and having the signal fixed thereon, a lever loosely mounted on said shaft, and a sleeve fixed on said shaft provided with means for affording an engagement with said lever and with two equally-disposed lugs or cars.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing witnesses.

MARQUIS D. HANLON.

Witnesses:

W. L. MODANIEL, JAMES CHALMERS, Jr. 

